> ## Documentation Index
> Fetch the complete documentation index at: https://docs.getvirtualbrain.com/llms.txt
> Use this file to discover all available pages before exploring further.

# Cloud Storage Connectors

> Sync SharePoint, OneDrive, Google Drive, and Dropbox folders into a Brain, with source permissions preserved

Most engagement files already sit in SharePoint, OneDrive, Google Drive, or Dropbox. Rather than re-uploading them, connect the source directly to a Brain: VirtualBrain syncs the documents you choose and respects the permissions they already carry.

## Why connect rather than upload

A connected source keeps your Brain aligned with the current state of the data room. As an engagement progresses, the source can be re-synced to pull in the latest versions and new files, with no manual re-uploading. Once synced, every document behaves like any other file in the Brain: processed, searchable, and citable.

## Supported sources

VirtualBrain connects to the cloud storage where engagement files already live. You pick exactly what to bring in, and source permissions are preserved on every one.

| Source           | What you can sync                               |
| ---------------- | ----------------------------------------------- |
| **OneDrive**     | Folders and individual files from your OneDrive |
| **SharePoint**   | Sites, document libraries, folders, and files   |
| **Google Drive** | My Drive, shared items, and shared drives       |
| **Dropbox**      | Folders, plus shared and team folders           |

<Note>
  Your VirtualBrain team sets up connectors with your IT during onboarding. Day to day, you just choose which folders to sync into each Brain.
</Note>

## Connect a source to a Brain

<Steps>
  <Step title="Open the Brain and click Add Integration">
    Integrations are connected per-Brain, so each engagement pulls only the content it should.
  </Step>

  <Step title="Select the source">
    Choose OneDrive, SharePoint, Google Drive, or Dropbox from the picker.
  </Step>

  <Step title="Authenticate">
    Sign in to the provider and authorize VirtualBrain. You'll only ever be able to reach content your own account already has access to.
  </Step>

  <Step title="Choose what to sync">
    Browse your drives, sites, and folders, and pick the specific items to bring in: a whole folder, a document library, or individual files.
  </Step>

  <Step title="Sync">
    VirtualBrain imports and processes the selected content; the bell notifies you when the sync completes. From there it behaves like any other document.
  </Step>
</Steps>

<Frame caption="Add Integration opens the source picker.">
  <img src="https://mintcdn.com/virtualbrain/VZdLXSl7brhQEIEq/images/brains/brain-add-integration.png?fit=max&auto=format&n=VZdLXSl7brhQEIEq&q=85&s=02a1a6346e5f9ef8e09badc563c67d10" alt="The integration source picker showing SharePoint, OneDrive, Google Drive, and Dropbox" width="2988" height="1704" data-path="images/brains/brain-add-integration.png" />
</Frame>

<Note>
  **Permission mirroring:** VirtualBrain mirrors the access rules of the source system. If a colleague can't open a folder in SharePoint, they can't see its contents through VirtualBrain either. Client-confidential boundaries you've already set are preserved automatically, and nothing is widened by syncing.
</Note>

## How re-syncing works

VirtualBrain keeps the connection live and automatically notices files you add to or remove from a synced folder. It will not re-import the new content of a document you have edited, however, until you run a **Force update** or turn on **Auto Update** for that integration.

## Manage an integration

Open a connected integration from inside the Brain for its controls:

| Control                    | What it does                              |
| -------------------------- | ----------------------------------------- |
| **Auto Update**            | Refreshes changed files automatically     |
| **Force an update**        | Re-pulls everything now                   |
| **Integration Statistics** | Shows what the integration has brought in |
| **Delete**                 | Removes the integration                   |

<Info>
  Your administrator may restrict which integration sources are available to the firm through an allow-list. See [Integrations Whitelist & Blacklist](/features/admin-dashboard/integrations-whitelist-blacklist).
</Info>

## Best practices

Be deliberate about which folders you bring in. A Brain gives its best answers when it holds documents that genuinely belong together, so sync the engagement folder, not the entire drive. Large syncs can take several minutes; the notifications bell tells you when processing is done.

## Related

* [Web Capture](/features/brains/web-capture): for content that lives on the web rather than in cloud storage
* [Organizing Documents](/features/brains/organizing-documents): track processing status after a sync
* [Single sign-on](/introduction/security-and-compliance): how VirtualBrain authenticates your work account